Bloggs, I've flown around the south eastern part of Oz for most of my aviation career, including Tassie. So I know a little about changeable weather. To cater for doomsday, you have to know about it. Neither crew knew. You can't run a viable operation based on doomsday everywhere you go. Unforecast fog has always "happened". Even when it happens, it's the timely information presentation that is important. They didn't get that. Pre flight, some people pick it, some don't. What I would've done, what you would've done or anybody else would've done is irrelevant now. We didn't. They did. I don't have their mindset, or their info. Neither do you. Would I have carried more fuel? I don't know. Would I have carried the same? I don't know. I wasn't there.